EP3461604A1 - Rasierklingeneinsatz - Google Patents

Rasierklingeneinsatz Download PDF

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Publication number
EP3461604A1
EP3461604A1 EP18196918.9A EP18196918A EP3461604A1 EP 3461604 A1 EP3461604 A1 EP 3461604A1 EP 18196918 A EP18196918 A EP 18196918A EP 3461604 A1 EP3461604 A1 EP 3461604A1
Authority
EP
European Patent Office
Prior art keywords
blade housing
cartridge assembly
connector
pair
razor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18196918.9A
Other languages
English (en)
French (fr)
Other versions
EP3461604B1 (de
Inventor
Semin Park
Dong Il Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dorco Co Ltd
Original Assignee
Dorco Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dorco Co Ltd filed Critical Dorco Co Ltd
Publication of EP3461604A1 publication Critical patent/EP3461604A1/de
Application granted granted Critical
Publication of EP3461604B1 publication Critical patent/EP3461604B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit
    • B26B21/225—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit the changeable unit being resiliently mounted on the handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4018—Guard elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/52—Handles, e.g. tiltable, flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/52—Handles, e.g. tiltable, flexible
    • B26B21/521—Connection details, e.g. connection to razor heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/44—Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
    • B26B21/443—Lubricating strips attached to the razor head

Definitions

  • the present disclosure relates to a razor cartridge assembly, and more particularly, to a razor cartridge assembly having a connector detachable from a razor handle and assembled to a blade housing.
  • a conventional razor commonly known as a wet razor, includes a blade housing and a razor handle.
  • the blade housing generally includes one or more blades disposed between a rear side of a guard bar and a front side of a cap.
  • the blade housing is rotatably installed on the razor handle so that it can swivel with respect to the razor handle between a neutral position and a swivel position during use of the razor. This swiveling motion may be based on a rotation axis parallel to a direction (longitudinal direction of the blade housing) in which the razor blades are disposed in the blade housing.
  • the blade housing when completely rotated in the direction of a cutting surface, the blade housing is at the neutral position.
  • the swiveling motion of the blade housing between the neutral position and the swivel position with respect to the razor handle plays an important role because it allows the blade housing and related blades to continue contacting the cutting surface during use.
  • the blade housing may swivel with respect to the razor handle in the direction of the swivel position as it is moved away from the cutting surface by a certain force.
  • the force may include a frictional force caused by the cutting surface contacting the guard bar and a force required when the blades cut hair.
  • the razor may include a biasing member such as a spring plunger. The biasing member acts to keep the blade housing in contact with the cutting surface by applying force to the blade housing in the direction of the neutral position.
  • blade housing and the razor handle can also be connected using a connector for secure assembly or proper swiveling motion.
  • blade housing may swivel with respect to the connector or the connector fixedly coupled to the blade housing may swivel on an end of the razor handle.
  • the connector may have a side detachably coupled to the blade housing and the other side coupled to an end of the razor handle.
  • the connector does not swivel with respect to the razor handle, whereas the blade housing swivels around the rotation axis parallel to the longitudinal direction of the razor cartridge with respect to the coupling end of the connector.
  • an end (for example, a plunger guard) of the razor handle detachably coupled to the connector swivels around the rotation axis with respect to the body of the razor handle.
  • aspects of the present disclosure provide a razor cartridge assembly having a connector that can be quickly and easily assembled to a blade housing.
  • aspects of the present disclosure also provide a razor cartridge assembly in which a connector may not be separated from a blade housing even when a considerable external force is applied after the connector is assembled to the blade housing.
  • a razor cartridge assembly including: one or more razor blades, each having a cutting edge; a blade housing configured to accommodate the one or more razor blades in a longitudinal direction of the blade housing; and a connector configured to be coupled to a back of the blade housing, wherein the blade housing comprises a rib disposed at the back of the blade housing and positioned in a direction perpendicular to the longitudinal direction; and the connector comprises an inner cantilever and an outer cantilever opposite the inner cantilever, wherein the inner cantilever and the outer cantilever are configured to engage with the rib to couple the blade housing and the connector together.
  • FIG. 1 is a perspective view of a razor 100 according to an embodiment as viewed from the back of a razor handle 30 (where the back of a blade housing 10 is visible).
  • FIG. 2 is a perspective view showing a razor cartridge assembly 50 separated from the razor handle 30 of FIG. 1 .
  • the razor 100 includes the razor cartridge assembly 50 which includes the blade housing 10 and a connector 20 fixedly coupled to the blade housing 10 and the razor handle 30 which is detachably coupled to the razor cartridge assembly 50.
  • a pair of plunger guards 31 are formed at an end of the razor handle 30. The plunger guards 31 may be inserted into or removed from a coupling space provided in the razor cartridge assembly 50.
  • a slider button 37 disposed on the back of the razor handle 30 may be configured to be pushed in a particular direction, for example toward the razor cartridge assembly 50.
  • a plunger (not shown) under a biasing force between the pair of plunger guards 13 may protrude toward one side of the razor cartridge assembly 50, thereby pushing the side of the razor cartridge assembly 50. Accordingly, the plunger guards 31 may be detached from the razor cartridge assembly 50.
  • the plunger guards 31 may swivel within a predetermined angle range with respect to a rotation axis ax formed near the end of the razor handle 30. Accordingly, when coupled to the plunger guards 31, the razor cartridge assembly 50 may also swivel around the rotation axis ax.
  • FIG. 3 is a plan view of the blade housing 10 of FIG. 2 as viewed from the front.
  • a razor blade 5 may have a cutting edge at one side, and the other side of the razor blade 5 may be seated in a seating slot provided in the blade housing 10.
  • one razor blade 5 or two or more razor blades 5 may be provided, and a direction in which the razor blade (or blades) 5 is accommodated in the blade housing 10 is a longitudinal direction d perpendicular to a shaving direction.
  • a pair of clips 7a and 7b for fixing both ends of the razor blade 5 to the blade housing 10 may be provided in order to prevent the razor blade 5 from being separated from the blade housing 10.
  • the pair of clips 7a and 7b may cover both ends of the razor blade 5 and pass through one or more through holes formed near the ends of the blade housing 10.
  • the pair of clips 7a and 7b may be bent toward a back 11 of the blade housing 10.
  • FIG. 3 shows an embodiment in which the clips 7a and 7b are wrapped around the blade housing 10 and passed through the through holes from a front of the blade housing 10.
  • a guard bar 1 may be provided parallel to the razor blade 5 in front of a position where the razor blade 5 is accommodated in the blade housing 10, and a lubrication band 3 may be provided parallel to the razor blade 5 behind the above position, with respect to a shaving direction.
  • the guard bar 1 may be configured to make a user's hair erect in a direction substantially perpendicular to the shaving direction in order to facilitate cutting of the hair by the razor blade 5, and the lubrication band 3 may be configured to smooth the rough skin after the cutting.
  • FIG. 4 is a rear view of an embodiment of the blade housing 10 of FIG. 2 .
  • the blade housing 10 may include ribs 12a and 12b configured to support the blade housing 10 at the back 11 in a direction perpendicular to the longitudinal direction d.
  • the ribs 12a and 12b may be structures that reinforce the blade housing 10 in a direction perpendicular to the razor blade 5.
  • a pair of ribs 12a and 12b may be disposed on left and right sides of the blade housing 10, respectively.
  • the ribs 12a and 12b may include guide slopes 14a and 14b for guiding the connector 20 to be fastened easily.
  • a first longitudinal beam 18 may be provided between the razor blade 5 and the lubrication band 3 at the back 11 of the blade housing 10 and comprise a hook coupling portion 15 configured to be fastened to a hook (not shown) of the connector 20.
  • a second longitudinal beam 19 may be provided between the guard bar 1 and the razor blade 5 at the back 11 of the blade housing 10 and comprise a center bar 17 configured to be pushed in contact with the plunger (not shown) of the razor handle 30. In some embodiments, when the center bar 17 is pushed by the plunger, it may be deformed in a direction opposite to the plunger.
  • FIGS. 5A through 5C are perspective views of the blade housing 10 and the connector 20 showing the blade housing 10 and the connector 20 before the connector 20 is coupled to the back 11 of the blade housing 10.
  • an inner cantilever 21a, 21b and a corresponding opposing outer cantilever 22a, 22b (hereinafter, each collectively referred to as inner-outer cantilevers) engage with a corresponding rib 12a, 12b from both sides.
  • a hook 23 may be provided between two inner-outer cantilever pairs at the connector 20 and be configured to be coupled to the hook coupling portion 15 provided between the ribs 12a, 12b at the back 11 of the blade housing 10.
  • the inner-outer cantilevers may engage with the ribs 12a, 12b from both sides at the same time as the hook 23 engages with a step 151 (see FIG. 7B ) formed on an inner side of the hook coupling portion 15. Accordingly, the connector 20 and the blade housing 10 may be securely coupled to each other.
  • FIG. 5C the connector 20 and the blade housing 10 before being coupled together are shown.
  • inner snap protrusions 212a and 212b are respectively provided on outer surfaces 211a and 211b of the inner cantilevers 21a and 21b facing the outer cantilevers 22a and 22b
  • outer snap protrusions 222a and 222b are respectively provided on inner surfaces 221a and 221b of the outer cantilevers 22a and 22b facing the inner cantilevers 21a and 21b.
  • the inner snap protrusions 212a and 212b and the outer snap protrusions 222a and 222b are respectively engaged with corresponding insertion grooves 13a and 13b (see FIGS. 5A and 5B ) the ribs 12a and 12b, securing the connector 20 and the blade housing 10 together.
  • Detail will be discussed with respect to engagement between one set of inner-outer cantilevers 21b, 22b and rib 12b, however it will be understood that the discussion may also apply to other similar aspects of the present disclosure, for example inner-outer cantilevers 21a, 22a and rib 12a.
  • the inner surface 221b of the outer cantilever 22b may substantially align with an outer surface of the rib 12b (denoted by line p), and an inner end of the outer snap protrusion 222b provided on the inner surface 221b of the outer cantilever 22b may substantially align with an upper end of the outer guide slope 14b formed at the front of the rib 12b.
  • the outer surface 211b of the inner cantilever 21b and an outer end of the inner snap protrusion 212b provided on the outer surface 211b of the outer cantilever 22b may be slightly displaced toward the center of the blade housing 10 (e.g., toward the hook 23) compared with the inner guide slope 14b and an inner surface of the rib 12b (denoted by lines r and s). Thus some clearance may be provided so that the inner-outer cantilevers 21b and 22b of the connector 20 can be smoothly engaged with the rib 12b.
  • the guide slopes 14b may cause a gap between the inner snap protrusion 212b and the outer snap protrusion 222b to be widened to provide for insertion of the inner snap protrusion 212b and the outer snap protrusion 222b into the insertion groove 13b.
  • the inner surface 221b and the outer snap protrusion 222b of the outer cantilever 22b and the outer surface 211b and the inner snap protrusion 212b of the inner cantilever 21b may be equally displaced on both sides of the center of the rib 12b.
  • the inner end of the outer snap protrusion 222b and the outer end of the inner snap protrusion 212b may contact each other at the time of assembling the connector 20 and the blade housing 10.
  • a gap (between lines q and r) between the ends of the outer snap protrusion 222b and the inner snap protrusion 212b before assembly may be smaller than a width w of the rib 12b and greater than a width v (smallest distance) between the upper ends of the two guide slopes 14b.
  • the gap between the inner snap protrusion 212b and the outer snap protrusion 222b is increased (in a A-A' direction) up to a maximum of the width w of the rib 12 as the inner-outer cantilevers 21b and 22b are moved downward along the guide slopes 14b. Then, as the inner snap protrusion 212b and the outer snap protrusion 222b are inserted into the insertion grooves 13b formed on both side surfaces of the rib 12b, the inner snap protrusion 212b and the outer snap protrusion 222b may move toward each other such that the gap between them is reduced again.
  • Each of the inner cantilever 21b and the outer cantilever 22b may be formed to have a cantilever beam structure having an elastic restoring force to an external bending force.
  • one of the inner cantilever 21b or the outer cantilever 22b may be fixed, and the other may be formed in a cantilever beam structure.
  • FIG. 5C the coupling relationship between one pair of inner-outer cantilevers 21b and 22b and the rib 12b has been described. As noted, the same may apply to the coupling relationship between another pair of inner-outer cantilevers, for example, 21a and 22a, and another rib, for example 12a, and thus a redundant description will be omitted.
  • FIGS. 6A through 6D are views of a connector 20 according to an embodiment of the present disclosure.
  • FIGS. 6A and 6B are perspective views of the connector 20 as viewed from different directions
  • FIGS. 6C and 6D are respectively a plan view and a rear view of the connector 20.
  • the connector 20 and the blade housing 10 are assembled together, they are coupled such that the combinations of the inner-outer cantilevers 21a and 22a and 21b and 22b formed on the right and left sides of the connector 20 are engaged to the ribs 12a and 12b formed at the corresponding positions of the blade housing 10.
  • This coupling ensures secure assembly of the connector 20 and the blade housing 10 in the longitudinal direction d (see FIG. 4 ), but may create a minute clearance in a transverse direction, which is perpendicular to the longitudinal direction d , due to an assembly tolerance. Therefore, in some embodiments, the connector 20 may further include the hook 23, which can be coupled to the hook coupling portion 15 of the blade housing 10. Here, an end of the hook 23may be configured to engage with the step 151 (see FIG.
  • the hook 23 may be configured to be bent or otherwise displaced as the hook 23 contacts the hook coupling portion 15 and a shape of the hook 23 may be restored and snapped back into place when it engages with the step 151, thereby creating a securing force. (see FIG. 7B ). Therefore, more secure coupling between the connector 20 and the blade housing 10 can be ensured.
  • the connector 20 may include a pair of projections 24a and 24b adjacent to the hook 23 and configured to guide the hook coupling portion 15 so that the hook 23 and the hook coupling portion 15 can be coupled together in position.
  • the projections 24a and 24b may be symmetrical with respect to the hook 23, and a guide slot 25, which is a space in which the hook coupling portion 15 can move while being guided, may be formed between the two projections 24a and 24b.
  • a clearance groove 26 is formed on an opposite side of the guide slot 25.
  • the clearance groove 26 is positioned at a predetermined clearance y (see FIG. 7A ) from the center bar 17 of the blade housing 10.
  • a plunger 36 see FIG. 9A
  • the center bar 17 is pushed while being elastically deformed to some extent or otherwise displaced in a direction opposite to the plunger 36.
  • the clearance groove 26 provides a space into which the pushed center bar 17 can be bent.
  • arc-shaped recesses 27 may be formed on an inner surface of the connector 20.
  • the profile shapes of the recesses 27 may match the contours of the pair of plunger guards 31 (see FIG. 9A ) formed at a proximal end of the razor handle 30.
  • FIG. 7A is a rear view of an assembly of the connector 20 and the blade housing 10, that is, the razor cartridge assembly 50.
  • a fastening space 55 is formed between the blade housing 10 and the connector 20 into which the proximal end of the razor handle 30 can be inserted in a direction toward the front end of the blade housing 10.
  • the inner cantilevers 21a and 21b may define opposing ends of the fastening space 55 in the longitudinal direction d.
  • the fastening space 55 may be divided into two regions by the center bar 17 of the blade housing 10, and each of the plunger guards 31 may be inserted into the two regions, respectively.
  • the plunger 36 (see FIG. 9A ) of the razor handle 30 may be moved in a forward direction, for example by the user's operation. As the plunger 36 moves in the forward direction, it pushes the center bar 17 and the pair of plunger guards 31 disengage from the fastening space 55. During detachment, the center bar 17 pushed by the plunger 36 may be bent within the range of the predetermined clearance y .
  • FIGS. 7B through 7D are cross-sectional views taken along directions B-B', C-C' and D-D' of FIG. 7A , respectively.
  • the beam 18 extending in the longitudinal direction d is formed roughly between the razor blade 5 and the lubrication band 3 at the back 11 of the blade housing 10, and the hook coupling portion 15 which can be fastened to the hook 23 of the connector 20 is provided on the back of the transverse beam 18.
  • an end of the hook 23 is coupled to the inner step 151 of the hook coupling portion 15 formed at a central portion of the blade housing 10. Therefore, after the assembly, the hook 23 is coupled to the hook coupling portion 15, and clearance between the hook 23 and the hook coupling portion 15 is reduced by restoration of the shape and some elasticity of the hook 23.
  • the connector 20 and the blade housing 10 can be securely coupled together.
  • FIG. 7C a cross-sectional view along direction C-C' is shown. It will be understood that a similar and substantially symmetrical configuration is considered opposite the direction line B-B'. and thus the following discussion includes reference to pairs or corresponding elements with substantially similar configurations which may not specifically be shown in Figure 7C , but can be understood by those of ordinary skill when viewed in context of the other figures of this disclosure.
  • a fastening space 55 is shown into which the pair of plunger guards 31 formed at the proximal end of the razor handle 30 can be inserted substantially from the back of the guard bar 1.
  • a pair of engaging protrusions 16a and 16b corresponding to the pair of plunger guards 31 are provided on the left and right sides of the center bar 17, respectively. Therefore, when the pair of plunger guards 31 are inserted into the fastening space 55, stepped grooves 32a and 32b (see FIG. 9B ) formed on the pair of plungers 31 are engaged with the engaging protrusions 16a and 16b, respectively.
  • the plunger guards 31 coupled to the fastening space 55 in this way maintain the coupled state until the plunger 36 (see FIG. 9A ) protrudes and pushes the center bar 17.
  • FIG. 7D a cross-sectional view along direction D-D' is shown.
  • FIG. 7D shows a structure in which the snap protrusions 212a and 222a or 212b and 222b formed on each pair of inner-outer cantilevers 21a and 22a or 21b and 22b are coupled to the insertion grooves 13a or 13b formed in the rib 12a or 12b, respectively.
  • the inner-outer cantilevers 21a and 22a or 21b and 22b are elastically deformed to increase the gap.
  • the gap between the snap protrusions 212a and 222a or 212b and 222b is reduced again when the snap protrusions 212a and 222a or 212b and 222b are snap-fit engaged with the insertion grooves 13a or 13b. Therefore, the connector 20 is not separated rearward from the blade housing 10.
  • FIG. 8A is an exploded perspective view of the razor 100 according to an embodiment
  • FIG. 8B is a side view of the exploded perspective view of FIG. 8A
  • FIG. 8C is a plan view of the exploded perspective view of FIG. 8A .
  • the pair of plunger guards 31 may be detachably coupled to the fastening space 55 formed in the razor cartridge assembly 50.
  • the fastening space 55 may be divided into two regions by the center bar 17, and each of the pair of plunger guards 31 may be inserted into the two regions, respectively. That is, when the pair of plunger guards 31 are inserted into the fastening space 55, the center bar 17 occupies the space between the pair of plunger guards 31.
  • the plunger guards 31 may be provided at a proximal end of a cartridge mount 35.
  • the cartridge mount 35 is separately provided and configured to be engageable with a handle grip 39.
  • the plunger guards 31 may swivel within a predetermined angle range with respect to the rotation axis ax parallel to the longitudinal direction d of the blade housing 10. Therefore, during shaving, the razor cartridge assembly 50 coupled to the plunger guards 31 may also be swiveled around the rotation axis ax according to the user's operation.
  • a coupling member 33 may be formed at a distal end of the cartridge mount 35 so as to be fastened to a proximal end of the handle grip 39.
  • the cartridge mount 35 may be integrally formed with the handle grip 39 instead of being provided as a separate component.
  • the slider button 37 may be formed on a side of the cartridge mount 35. The user may push the slider button 37 up toward the razor cartridge assembly 50, thereby causing the plunger 36 to protrude. In other embodiments, the slider button 37 may be configured to be pushed inward or in any direction to cause the plunger 36 to protrude.
  • the pair of plunger guards 31 are provided at the proximal end of the cartridge mount 35, and the plunger 36 is formed between the pair of plunger guards 31. When there is no external force being applied, the plunger 36 is disposed at a position where it does not protrude substantially from the cartridge mount 35.
  • the plunger 36 when the user pushes the slider button 37 up toward the razor cartridge assembly 50, the plunger 36 protrudes between the two plunger guards 31 toward the razor cartridge assembly 50.
  • the protruding plunger 36 pushes the center bar 17 (see FIG. 5A ), thereby causing the plunger guards 31 coupled to the fastening space 55 to be detached from the razor cartridge assembly 50.
  • FIG. 9B is a rear view of the cartridge mount 35 of FIG. 9A as viewed from the front.
  • the contours of the pair of plunger guards 31 may have profiles that match the recesses 27 (see FIG. 6D ) formed on the inner surface of the connector 20.
  • the pair of projections 24a and 24b (see FIG. 6 ) formed on the connector 20 serve as stoppers for the pair of plunger guards 31.
  • the stepped grooves 32a and 32b formed on the pair of plunger guards 31 are engaged with the pair of engaging protrusions 16a and 16b (see FIG. 5B ) formed on the left and right sides of the center bar 17 at the back 11 of the blade housing 10.
  • the coupling between the razor cartridge assembly 50 and the razor handle 30 may be stably maintained.
  • the razor handle 30 may be decoupled from the razor cartridge assembly 50 when the plunger 36 is made to push the center bar 17 by the user's operation.
  • FIG. 10A is a perspective view showing a state where the razor cartridge assembly 50 is coupled to the cartridge mount 35.
  • FIG. 10B is a cross-sectional view taken along direction E-E' of FIG. 10A .
  • the pair of plunger guards 31 are inserted into the fastening space 55 of the razor cartridge assembly 50, and the plunger 36 is not protruding from the cartridge mount as the slider button 37 has not been operated.
  • the plunger 36 and the slider button 37 may be integrally formed and are subjected to a biasing force f toward an initial position by a biasing member, for example, a coil spring 34, (see FIG. 10B ).
  • the slider button 37 may be positioned away from the razor cartridge assembly 50 due to the biasing force f of the coil spring 34. Therefore, the plunger 36 is not externally exposed and does not contact the center bar 17 of the blade housing 10, even when the plunger guards 31 swivel. If the user causes the slider button 37 to be moved upward against the biasing force f , the plunger 36 may be moved to push the center bar 17, causing the plunger guards 31 to be detached from the fastening space 55. Ultimately, the razor cartridge assembly 50 is separated from the cartridge mount 35 or the razor handle 30.
  • inner and outer cantilevers are provided which are configured to engage with corresponding ribs formed on the back of a blade housing, providing simple and secure assembly of the razor cartridge assembly.
  • plunger guards of a razor handle can be easily coupled and decoupled to and from a fastening space formed between the blade housing and a connector.
EP18196918.9A 2017-09-29 2018-09-26 Rasierklingeneinsatz Active EP3461604B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170127831A KR101876233B1 (ko) 2017-09-29 2017-09-29 면도기 카트리지 어셈블리

Publications (2)

Publication Number Publication Date
EP3461604A1 true EP3461604A1 (de) 2019-04-03
EP3461604B1 EP3461604B1 (de) 2020-07-15

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Family Applications (1)

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EP18196918.9A Active EP3461604B1 (de) 2017-09-29 2018-09-26 Rasierklingeneinsatz

Country Status (6)

Country Link
US (1) US10766156B2 (de)
EP (1) EP3461604B1 (de)
JP (1) JP6588141B2 (de)
KR (1) KR101876233B1 (de)
CN (1) CN109571561B (de)
ES (1) ES2808984T3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180264668A1 (en) * 2015-11-20 2018-09-20 Dorco Co,. Ltd. Razor
EP3771530A1 (de) * 2019-07-31 2021-02-03 Bic Violex S.A. Mechanische anordnung einer hautpflegevorrichtung, hautpflegevorrichtung und verfahren zur herstellung davon
EP3848167A3 (de) * 2019-12-18 2021-09-29 Dorco Co., Ltd. Rasierer

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101876233B1 (ko) 2017-09-29 2018-07-10 주식회사 도루코 면도기 카트리지 어셈블리
USD913591S1 (en) * 2018-06-04 2021-03-16 The Gillette Company Llc Shaving razor cartridge
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US10766156B2 (en) 2020-09-08
CN109571561A (zh) 2019-04-05
JP2019063529A (ja) 2019-04-25
CN109571561B (zh) 2020-11-06
EP3461604B1 (de) 2020-07-15
US20190099905A1 (en) 2019-04-04
KR101876233B1 (ko) 2018-07-10
JP6588141B2 (ja) 2019-10-09
ES2808984T3 (es) 2021-03-02

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